/*!	 activepointsimpleadd.cpp
**	 Simple add activepoint File
**
**	Copyright (c) 2004 Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include "activepointsimpleadd.h"
#include <synfigapp/canvasinterface.h>

#include <synfigapp/localization.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace synfigapp;
using namespace Action;

ACTION_INIT(Action::ActivepointSimpleAdd);
ACTION_SET_NAME(Action::ActivepointSimpleAdd, "ActivepointSimpleAdd");
ACTION_SET_LOCAL_NAME(Action::ActivepointSimpleAdd, N_("Simply Add Waypoint"));
ACTION_SET_TASK(Action::ActivepointSimpleAdd, "add");
ACTION_SET_CATEGORY(Action::ActivepointSimpleAdd, Action::CATEGORY_WAYPOINT);
ACTION_SET_PRIORITY(Action::ActivepointSimpleAdd, 0);
ACTION_SET_VERSION(Action::ActivepointSimpleAdd, "0.0");
ACTION_SET_CVS_ID(Action::ActivepointSimpleAdd, "$Id$");

Action::ActivepointSimpleAdd::ActivepointSimpleAdd():
    index(),
    time_overwrite()
{
    set_dirty(true);
    activepoint.set_time(Time::begin() - 1);
}

Action::ParamVocab
Action::ActivepointSimpleAdd::get_param_vocab()
{
    ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

    ret.push_back(ParamDesc("value_desc", Param::TYPE_VALUEDESC)
                  .set_local_name(_("Destination ValueNode (Animated)"))
                 );

    ret.push_back(ParamDesc("activepoint", Param::TYPE_ACTIVEPOINT)
                  .set_local_name(_("Activepoint"))
                  .set_desc(_("Activepoint to be added"))
                 );

    return ret;
}

bool
Action::ActivepointSimpleAdd::is_candidate(const ParamList &x)
{
    if (candidate_check(get_param_vocab(), x)) {
        ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());

        if (!value_desc.parent_is_value_node() || !ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node())) {
            return false;
        }

        return true;
    }

    return candidate_check(get_param_vocab(), x);
}

bool
Action::ActivepointSimpleAdd::set_param(const synfig::String& name, const Action::Param &param)
{
    if (name == "value_desc" && param.get_type() == Param::TYPE_VALUEDESC) {
        ValueDesc value_desc(param.get_value_desc());

        if (!value_desc.parent_is_value_node()) {
            return false;
        }

        value_node = ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());

        if (!value_node) {
            return false;
        }

        index = value_desc.get_index();

        return true;
    }

    if (name == "activepoint" && param.get_type() == Param::TYPE_ACTIVEPOINT) {
        activepoint = param.get_activepoint();

        return true;
    }

    return Action::CanvasSpecific::set_param(name, param);
}

bool
Action::ActivepointSimpleAdd::is_ready()const
{
    if (!value_node && activepoint.get_time() != (Time::begin() - 1)) {
        return false;
    }

    return Action::CanvasSpecific::is_ready();
}

void
Action::ActivepointSimpleAdd::perform()
{
    // remove any pretenders that lie at our destination
    ValueNode_DynamicList::ListEntry::findresult iter = value_node->list[index]
            .find_time(activepoint.get_time());

    time_overwrite = false;

    if (iter.second) {
        overwritten_ap = *iter.first;
        time_overwrite = true;
        value_node->list[index].erase(overwritten_ap);
    }

    // add the value node in since it's safe
    value_node->list[index].add(activepoint);

    // sort them...
    value_node->list[index].timing_info.sort();

    // Signal that a valuenode has been changed
    value_node->changed();
}

void
Action::ActivepointSimpleAdd::undo()
{
    // remove our old version...
    ValueNode_DynamicList::ListEntry::findresult iter = value_node->list[index].find_uid(activepoint);

    if (!iter.second) {
        throw Error(_("The activepoint to remove no longer exists"));
    }

    // remove the offending value
    value_node->list[index].erase(*iter.first); // could also just use waypoint

    if (time_overwrite) {
        value_node->list[index].add(overwritten_ap);
    }

    // sort them...
    value_node->list[index].timing_info.sort();

    // Signal that a valuenode has been changed
    value_node->changed();
}